Strategies for Incorporating Delegation into Attribute-Based Access Control (ABAC)

摘要

Attribute-Based Access Control (ABAC) is an emerging model of access control that has gained significant interest in both recent academic literature and industry application. However, to date there have been almost no attempts to incorporate the concept of dynamic delegation into ABAC. This work lays out a number of possible strategies for incorporating delegation into existing ABAC models and discusses the potential trade-offs associated with each strategy. Delegation strategies are categorized into families that share a number of similar properties. It is our hope that this preliminary work will aid in future ABAC based delegation research by identifying and detailing the challenges and opportunities intrinsic to each method of integrating delegation.